Deibu is here to let you take it easy. If you want some chore to be done, ask Deibu! Uploading, putting translation boxes, tagging, whatever. Deibu might take it easy at times, because Deibu needs to hunt to have munch-munch, but outside of that Deibu will do her best.
We know that without accesories Yukkuris are seen as uneasy, but not "monsters" per see like here.
So maybe making them bald but still having mouth and eyes makes them be percieved as monsters in other yu's eyes? or just the act of biting agression warps the perception from "bald uneasy manjuus" into "balls of mouths and teeths doing munch munch on yukkuri"?
I mean, ironically, when bald yukkuris have their eyes and mouth sealed other yukkuris confuse them for manjuus/dumplings but that's not the case here.